diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index cde3b5df9a82347651848fc4c16da5fc175b8531..7f289416e511bbccef3acb5dd394980480cb553c 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,8 +3,6 @@ pages:
   image: rocker/r-rmd
   script:
     - mkdir -p public/img
-    - ls -l
-    - pwd
     - make
     - cp 1_scrnaseq_data/scrnaseq_data.pdf 2_normalization/normalization.pdf 3_dimension_reduction/dimension_reduction.pdf 4_clustering/clustering.pdf 5_pseudo_time/pseudo_time.pdf 6_dea/dea.pdf public/
   artifacts:
diff --git a/1_scrnaseq_data/scrnaseq_data.Rmd b/1_scrnaseq_data/scrnaseq_data.Rmd
index b2bbf4c52220a8628cf4cfb3d93ee6293dc4c5cf..766e43b7c1e27bea9563de7a3d7ab5b7fe42f3d0 100644
--- a/1_scrnaseq_data/scrnaseq_data.Rmd
+++ b/1_scrnaseq_data/scrnaseq_data.Rmd
@@ -789,8 +789,7 @@ Do we keep reads mapping after the annotated 3' UTR ?
 \begin{columns}
 \column{0.65\textwidth}
 \begin{center}
-\includegraphics[width=\textwidth]{img/discared_reads.png
-}
+\includegraphics[width=\textwidth]{img/discared_reads.png}
 \end{center}
 \column{0.35\textwidth}
 {\bf Your best marker genes could be in the small percent of genes lost}
@@ -803,8 +802,7 @@ Why bother ?
 \vspace{-1.5em}
 
 \begin{center}
-\includegraphics[width=.8\textwidth]{img/full_length_vs_3prim.png
-}
+\includegraphics[width=.8\textwidth]{img/full_length_vs_3prim.png}
 \end{center}
 
 # Quantification
diff --git a/5_pseudo_time/pseudo_time.Rmd b/5_pseudo_time/pseudo_time.Rmd
index 178b511469a071cc2f452bdc4bd2f1198ecfd761..36b215b1ab9db226c93340e399d20fc25dd42cf0 100644
--- a/5_pseudo_time/pseudo_time.Rmd
+++ b/5_pseudo_time/pseudo_time.Rmd
@@ -369,25 +369,28 @@ When we have a scRNASeq time serie we want:
 
 ## Waddington OT
 
+### Finding the best cell coupling
 \begin{center}
   \href{olivier gandrillon}{
-    \includegraphics[width=0.5\textwidth]{img/coupling_1.png}
+    \includegraphics[width=0.4\textwidth]{img/coupling_1.png}
   }
 \end{center}
 
 ## Waddington OT
 
+### Finding the best cell coupling
 \begin{center}
   \href{olivier gandrillon}{
-    \includegraphics[width=0.5\textwidth]{img/coupling_2.png}
+    \includegraphics[width=0.4\textwidth]{img/coupling_2.png}
   }
 \end{center}
 
 ## Waddington OT
 
+### Finding the best cell coupling
 \begin{center}
   \href{olivier gandrillon}{
-    \includegraphics[width=0.5\textwidth]{img/coupling_3.png}
+    \includegraphics[width=0.4\textwidth]{img/coupling_3.png}
   }
 \end{center}